Island



fl r3. EL \N\TNE55E5.

(No Model.) 2 Sheets-Sheet,l l,

G. A. RADLEY.

GRINDING MACHINE.

A "L" Il 4 N. PETERS, Phuto- Limugmphen Washingmn, D. D.

(No Model.) 2 Sheets-Sheet Z.

.f G. A. `RADLEY.

GRINDING MACHINE. No. 385,666. PatentedJuly 3, 1888.

Wl TNEEEEE. iNVEN-VDH N. PETERS. Pnaw-Lnhcgmpm. wasmngm". v. c.

Ait-*ENT Fries,

GEORGE A. H ADLEY, OF PROVIDENCE, RHODE ISLAND.

GRINDINGm iVlACl-HNE.v

SPECIFICATION forming part of Letters Patent No. 385,666, dated July 3,1888.

Application Filed May 7, 1886. Serial No. 201,488.

To aZZ whom t may concern.-

Be it known that I, GEORGE A. HADLEY, el' Providence, in the State ofRhode Island, have invented a new and nsel'ul Improvement inGrinding-Machines, of which the following is a specification.

My invention relates to that class of grindingmaehines in which agrindingwheel is employed in connection with a constantly-circulatingstream of water, which serves to prevent the piece ol' work frombecoming heated in the operation of grinding; and it consists in thecombination of the pump, a removable res ervoir-pan, and a filterpivoted to the suctionpipe ot' the pump and adapted to draw the waterfrom the said reservoir-pan, and to be turned upward upon its pivot inorder to efi'ect the desired removal oi the reservoir-pan, and also inthe improved construction of the ease, whereby the grinding-wheel can bereadily removed and the leakage of water be prevented at the .joints ofthe sections of the ease, as hereinafter full y set l'orth.

Figure l is a front elevation with the closing doors of the hollowstandard ofthe frame removed, showing the filtering-pan and thereservoir-pan for the circulating water. Fig. 2 is a side elevation ofthe machine. Fig. Sis a vertical section taken in the line x x ol' Fig.l. Figs. 4C to S, inclusive, are detail views illustrating the iimprovedconstruction of the case for the grimling-wheel.

In the accompanying drawings, A is the liollow standard oi' the frameofthe machine; B, the head for holding the arbor C; D, thedriving-pulleys; E, the grindingwiieel, and F the pump for causing theproper circulation of .water to the periphery ofthe grinding-wheel.

G is the lower portion of the wheelease, and H the upper portion of thesame. The parts G and H are connected to each other by means oi' theslot a, made in the baeliwardlyvextending lip b upon the part G and thecurved tongue or hook c upon the part H; and in order to prevent leakageat the hingeljoint so formed l provide a groove, d, made parallel withthe slot d upon the portion G, and a downwardlyextending lip, c, uponthe portion H, adapted to enter the groove d, and also make aperforatiomf, extending from the bot tom of the groove d to thewheel-chamber g,

(No model.)

as shown in Fig. 5, which shows a top view of the lower portion ofthewheel-ease, Fig. 6 being a side elevation oi` the upper portion ofthewheel ease, and Fig. 8 an under view ot' the same.

The upper portion, H, of the case is provided with the ears h lz, whichare perforated to receive the screws i, by means ot' which secureattachment is made with the portion G. The portion H is also providedwith a sliding gate, I, adapted to fit againstthe periphery ot the wheelE, as shown by the doited lines in the vertical section of the portionH, (shown in Fig. 7,) the gate l being held in proper position by meansof a thumb screw,j. Behind the gate I, and extending transversely of thecase H, is placed the sprinhlenpipe J, which is held in position forthrowing jets against theperiphery of the wheel E by means of theset-screw liz, and in front ofthe gate I. is placed the sprinkler-pipeK, which is pivoted to the case H, and is located immediately back oftheguard-piece L, which is also pivoted to the case H, and which is held inproper position with the periphery of the grinding-wheel by means of theset-screw Z. The ejection-pipe M ol" the pump extends upward to thestopeeoek N, and from thence connection is made to either ofthesprinkler pipes, I orK, as desired, by means of the removable flexibletube O.

The case G is provided with a removable side, P, made in segment form,as shown in side elevation and vertical section in Fig. 4t, the loweredge of which is provided with a ein cular groove, m, adapted to litover the corresponding circular rib, a, of the ease G, and when it isdesired to remove the grinding wheel E from thearbor C. I have only toturn back the upper portion, H, of the case on the hinge-joint and slidethe segment l? cireularly until it can be removed from the side of thecase G. Then the wheel E, which is oi" less diameter than the diameterofthe removed segment, can be removed from the arbor C through theopening so formed in the side of the case G. I can therefore remove thewheel without heilig obliged to raise the caps of the bearing-boxes oot' the arbor, which is a very desirable improvement in machines of thisclass. The water from the grinding-wheel, with the material abraded fromthe work which is being ground, passes downward through the passagep inthe bottom ofthe case G and over the surface of the table Q, or along apassage in the same, to the filter-pan R, which is made principally ofaframe, S, inclosing a bottom and four sides of ine wire gauze, T, andthe lter-pan It is also provided with opposite laterally-extending ribs,q, which rest upon the slides r r, projecting inward from the sides ofthe chamber U of the frame standard A, as shown in Fig. 1, whereby thelter-pan It can be drawn out through the opening s whenever it isdesired to empty the accumulated sediment from the same. Directly underthe ilter-pan R is placed the reservoir-pan V,whieh is supported in theslides t t, (shown by dotted lines in Fig. 1,) so that the pan V can bedrawn out at the opening u whenever it is desired to empty the waterfrom the same.

The suction-pipe V of the pump F is pr0- vided with a lter, X, attachedto the lower end ofthe pipe n, which is pivoted to the end w of thesiictiolrpipe, so that as the reservoirpan V is being drawn out at theopening u the lower end of the pipe o will be caused to move in the arcofa circle, as shown by the broken line in Fig. 3, thus allowing theready removal and reinsertion of the rcservoirpan. The pump F ispreferably of the rotary class, and is driven by means of suitable bandsand pulleys, as shown in Figs. 1 and 2.

It is of course to be understood that the positions of the rib andgroove which serve to join the case and removable segment may bereversed, so that the circular groove will be made upon the case and thecorresponding rib upon the segment.

I claim as my inventionl. In combination, the removable reservoirpan,the pump, and the lter pivoted to the suetion-pipe ofthe pump andadapted to draw the water from the said reservoirpan and to be turnedupward upon its pivot in order to effect the desired removal of the saidpan, substantially as described.

2. In combination, the lower sect-ion of the Wheelease provided with theslot, the groove, and the perforation extending from the groove, and theupper section of the wheel-case provided With the curved tongue or hook,and the downwardlyextending lip which enters the said groove,substantially as and for the purpose specified.

3. In combination, the rotary arbor, the grinding-wheel, the caseprovided with a circular rib, and the removable segment provided with agroove adapted to fit over the corresponding rib of the case,substantially as and for the purpose specified.

GEORGE A. HADLEY.

Witnesses:

SOCRATES SCHOLFIELD, GEORGE D. Barcos.

